🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.3

Radius: 10.9

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.6 AU - 0.9 AU

Year: 426 Days

Day: 7.4 Hours

Environment

Temp: -144 °C

Axial Tilt: 141.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 92,892,957 km

• M1: 136,134 km (0.069 R)
• M2: 527,931 km (0.089 R)
• M3: 1,181,823 km (0.113 R)
• M4: 1,556,715 km (0.116 R)
• M5: 2,244,566 km (0.112 R)
• M6: 3,305,664 km (0.106 R)
• M7: 3,732,916 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.7

Radius: 13.2

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.07 AU - 1.13 AU

Year: 757 Days

Day: 9.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 92,892,957 km

• M1: 164,109 km (0.041 R)
• M2: 761,902 km (0.1 R)
• M3: 1,349,672 km (0.106 R)
• M4: 2,515,039 km (0.069 R)
• M5: 3,028,011 km (0.041 R)
• M6: 3,486,229 km (0.113 R)
• M7: 4,140,121 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271.8

Radius: 10.6

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.1 AU - 1.38 AU

Year: 906 Days

Day: 5.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 92,892,957 km

• M1: 131,796 km (0.111 R)
• M2: 659,577 km (0.102 R)
• M3: 1,013,825 km (0.115 R)
• M4: 1,499,270 km (0.05 R)
• M5: 1,834,070 km (0.101 R)
• M6: 2,228,859 km (0.055 R)
• M7: 2,637,859 km (0.09 R)
• M8: 2,991,658 km (0.106 R)
• M9: 3,556,390 km (0.087 R)
• M10: 5,686,065 km (0.053 R)
• M11: 6,128,726 km (0.071 R)
• M12: 6,958,844 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 799.7

Radius: 14.4

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 1.3 AU - 1.32 AU

Year: 984 Days

Day: 14.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 92,892,957 km

• M1: 179,069 km (0.09 R)
• M2: 689,048 km (0.054 R)
• M3: 1,208,452 km (0.111 R)
• M4: 1,691,952 km (0.084 R)
• M5: 2,158,248 km (0.108 R)
• M6: 2,925,386 km (0.072 R)
• M7: 3,638,071 km (0.074 R)
• M8: 4,225,841 km (0.119 R)
• M9: 4,803,139 km (0.113 R)
• M10: 5,737,078 km (0.095 R)
• M11: 6,789,051 km (0.062 R)
• M12: 7,534,347 km (0.101 R)
• M13: 8,387,205 km (0.107 R)
• M14: 9,390,109 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 30.5

Radius: 12.1

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.42 AU - 1.44 AU

Year: 1122 Days

Day: 7.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 92,892,957 km

• M1: 151,094 km (0.103 R)
• M2: 678,875 km (0.106 R)
• M3: 1,194,389 km (0.064 R)
• M4: 2,067,592 km (0.05 R)
• M5: 2,484,821 km (0.074 R)
• M6: 2,996,146 km (0.117 R)
• M7: 3,728,129 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198.2

Radius: 11.9

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 2.78 AU - 2.92 AU

Year: 3156 Days

Day: 6.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 92,892,957 km

• M1: 148,850 km (0.115 R)
• M2: 867,219 km (0.073 R)
• M3: 1,923,230 km (0.11 R)
• M4: 2,772,049 km (0.087 R)
• M5: 3,565,216 km (0.117 R)
• M6: 4,484,645 km (0.096 R)
• M7: 5,181,173 km (0.094 R)
• M8: 8,436,722 km (0.051 R)
• M9: 8,894,940 km (0.06 R)
• M10: 12,939,617 km (0.052 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 930

Radius: 6.2

Gravity: 24.19 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 9.01 AU - 12.51 AU

Year: 23154 Days

Day: 15.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 92,892,957 km

• M1: 140,323 km (0.115 R)
• M2: 378,034 km (0.11 R)
• M3: 1,360,144 km (0.104 R)
• M4: 1,652,608 km (0.103 R)
• M5: 2,225,717 km (0.034 R)
• M6: 4,022,537 km (0.074 R)
• M7: 4,371,549 km (0.074 R)
• M8: 6,017,275 km (0.088 R)
• M9: 6,904,690 km (0.053 R)
• M10: 7,252,654 km (0.11 R)
• M11: 7,508,168 km (0.057 R)
• M12: 7,769,814 km (0.098 R)
• M13: 9,349,119 km (0.066 R)
• M14: 12,316,991 km (0.074 R)
• M15: 12,607,809 km (0.084 R)
• M16: 12,828,915 km (0.101 R)
• M17: 16,030,309 km (0.109 R)
• M18: 17,175,631 km (0.113 R)
• M19: 17,999,915 km (0.082 R)
• M20: 18,850,229 km (0.056 R)
• M21: 19,529,852 km (0.118 R)
• M22: 20,326,461 km (0.052 R)
• M23: 21,772,325 km (0.052 R)
• M24: 26,761,264 km (0.12 R)
• M25: 27,743,374 km (0.109 R)
• M26: 33,437,518 km (0.093 R)
• M27: 33,719,809 km (0.089 R)
• M28: 42,781,700 km (0.106 R)
• M29: 43,114,406 km (0.082 R)
• M30: 44,122,994 km (0.108 R)
• M31: 44,462,731 km (0.086 R)
• M32: 50,322,330 km (0.111 R)
• M33: 53,725,532 km (0.095 R)
• M34: 54,502,095 km (0.089 R)
• M35: 55,286,137 km (0.054 R)
• M36: 58,089,452 km (0.049 R)
• M37: 59,940,725 km (0.072 R)
• M38: 63,977,624 km (0.089 R)
• M39: 73,536,479 km (0.101 R)
• M40: 76,432,694 km (0.096 R)
• M41: 83,484,438 km (0.107 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 366 - 17,051 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit